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Acetylide ion C2^(2-), possesses...

Acetylide ion `C_2^(2-)`, possesses

A

two `sigma` bonds one `pi` bonds and one lone pair of electrons.

B

one `sigma` bond, two `pi` bonds and one lone pair of electrons.

C

one `sigma` bond, two `pi` bonds, and two lone pairs of electrons

D

three `sigma` bonds, and two lone pairs of electrons

Text Solution

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The correct Answer is:
C
Carbides of strongly electropositive metals `(Na,K,Ca,Sr,Ba)` are ionic containing the acetylide ion:
`[:overlineC-=overlineC:]`
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